Process Control and Instrumentation Which of the following does not figure in the list of seven substances selected for international temperature scale? Zinc (B.P) and mercury (F.P) Ice (F.P) and steam (B.P) Antimony and silver (F.P) Oxygen and sulphur (B.P) Zinc (B.P) and mercury (F.P) Ice (F.P) and steam (B.P) Antimony and silver (F.P) Oxygen and sulphur (B.P) ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation In a feed-back control system G and H denote open loop and close loop transfer functions respectively. The output-input relationship is H(1 + G) H/G G/(1 + H) G/H H(1 + G) H/G G/(1 + H) G/H ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation In a second order under damped system, the None of these Time required for the response of first reach its ultimate value is called the response time Decay ratio (which is the ratio of the sizes of successive peaks) is equal to the reciprocal of overshoot Overshoot (which is a measure of how much the response exceeds the ultimate value) increase with the decrease of damping co-efficient e None of these Time required for the response of first reach its ultimate value is called the response time Decay ratio (which is the ratio of the sizes of successive peaks) is equal to the reciprocal of overshoot Overshoot (which is a measure of how much the response exceeds the ultimate value) increase with the decrease of damping co-efficient e ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation The deflection in diaphragm (which is used as pressure sensor in pneumatic and electronic instruments) is dependent on the metal thickness, its diameter (d) and shape & number of corrugations. Its deflection is proportional to D⁴ D³ D D² D⁴ D³ D D² ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Pirani gauge is used for the measurement of Liquid level under pressure High vacuum Liquid level at atmospheric pressure Very high pressure Liquid level under pressure High vacuum Liquid level at atmospheric pressure Very high pressure ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Phase lag of the sinusoidal response of a first order system is 180° 30° 90° 120° 180° 30° 90° 120° ANSWER DOWNLOAD EXAMIANS APP
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